因项目需要，需对mapcontrol控件响应上下左右键，从网上找的方法都一样，都值提到了需要设置axMapControl1的KeyIntercept属性为1，但这样做的结果是，除了自己在onkeydown中设置的平移1/10个屏幕大小外，系统还会有一个默认的平移操作。经研究发现，设置axMapControl1的autokeyboardscrolling属性为false即可屏蔽系统默认的对上下左右键的相应方法。
axMapControl1.AutoKeyBoardScrolling=false; axMapControl1.KeyIntercept = 1; private void axMapControl1_OnKeyDown(object sender, ESRI.ArcGIS.MapControl.IMapControlEvents2_OnKeyDownEvent e) { switch (e.keyCode) { case (int)System.Windows.Forms.Keys.Up: PanMap(0d, 0.5d); break; case (int)System.Windows.Forms.Keys.Down: PanMap(0d, -0.5d); break; case (int)System.Windows.Forms.Keys.Left: PanMap(-0.5d, 0d); break; case (int)System.Windows.Forms.Keys.Right: PanMap(0.5d, 0d); break; } } private void PanMap(double ratioX, double ratioY) { //Pans map by amount specified given in a fraction of the extent e.g. rationX=0.5, pan right by half a screen IEnvelope envelope = axMapControl1.Extent; double h = envelope.Width; double w = envelope.Height; envelope.Offset(h * ratioX, w * ratioY); axMapControl1.Extent = envelope; }
原文：http://www.cnblogs.com/arxive/p/6262706.html